Randall Margraves, left, father of three victims of Larry Nassar, background right, lunges at Nassar in Eaton County Circuit Court in Charlotte, Mich., on Friday, Feb. 2, 2018. The incident came during the third and final sentencing hearing for Nassar on sexual abuse charges. The charges in this case focus on his work with Twistars, an elite Michigan gymnastics club. -
Photo by The Grand Rapids Press via AP / Cory Morse

CHARLOTTE, Mich. — A man who tried to attack former sports doctor Larry Nassar in a Michigan courtroom is thanking people who donated $31,000 online but says he doesn't want the money.

Randy Margraves says refunds are available. After March 9, any money in the GoFundMe account will be donated to groups that help victims of physical abuse.